Sony Computer Entertainment has announced that Steel Rain, a new Killzone 3 DLC (downloadable content), is now available via PlayStation Store for €4.99 - PlayStation Plus members can download the Steel Rain pack for free for the whole of April. Steel Rain consists of two new multiplayer maps inspired by locations from the single player campaign: Junkyard, a Guerrilla Warfare map which sees Jetpacks and Exoskeletons clashing in a rain-drenched junk processing facility; and Stahl Arms, a uniquely styled Warzone map set on the factory floor of one of Helghan’s largest weapons manufacturing plants.